Event: Open 4-Board

Opponent Rating Result
Antanas Zapolskis 2252 0 - 1
Charles A Sturt 1709 1 - 0
Adam Cranston 1787 0 - 1
John W Bass 1952 ½ - ½
David Steyn 1652 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1870 = (9352 + 400 * (2 - 2)) / 5)

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